internal Exception GetException(Exception?assertionException = null)
{
var context = new AssertionFailureContext(_assertion, assertionException);
var failureAnalyzer = new AssertionFailureAnalyzer(context);
var failedAssertions = failureAnalyzer.AnalyzeAssertionFailures();
var message = string.Join(Environment.NewLine + Environment.NewLine, failedAssertions.Select(f => FormatExceptionMessage(context, f, assertionException)));
return(ExceptionHelper.GetException(message));
}
public FriendlyMessageProviderForException(AssertionFailureContext context)
{
_context = context;
}
public AssertionFailureAnalyzer(AssertionFailureContext context)
{
_context = context;
}
private string FormatExceptionMessage(AssertionFailureContext context, FailedAnalyzedAssertion failedAssertion, Exception?originalException)
{
var assertionExpression = ExpressionToString(failedAssertion.Assertion.Expression);
string result;
if (failedAssertion.Message == null)
{
result = $"Assertion failed: {assertionExpression}";
}
else
{
result = $@"{failedAssertion.Message}
Assertion: {assertionExpression}";
}
if (_assertion.Message != null)
{
result += $@"
Message: {(_assertion.Message is string s ? s : Serializer.Serialize(_assertion.Message))}";
}
if (_assertion.Context != null)
{
result += $@"
Context: {ExpressionToString(_assertion.Context.Body)} = {Serializer.Serialize(EvaluateExpression(_assertion.Context.Body))}
";
}
if (originalException != null)
{
if (failedAssertion.CauseOfException != null)
{
result += $@"
Cause of exception: {ExpressionToString(failedAssertion.CauseOfException)}";
}
result += $@"
Exception: {originalException.Message}
StackTrace: {originalException.StackTrace}";
}
var locals = LocalsProvider.LocalsToString(failedAssertion.Assertion.Expression, context.EvaluatedExpressions);
if (locals != null)
{
result += $@"
Locals:
{locals}
";
}
result += Environment.NewLine;
return(result);
}
public FriendlyMessageProvider(AssertionFailureContext context, FailedAssertion part)
{
_context = context;
_part = part;
}